public class Demo5 {

    public static void main(String[] args) throws InterruptedException {

        Thread t = new Thread(() -> {

            while (!Thread.currentThread().isInterrupted()) {
                System.out.println("hello thread");
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
//                    throw new RuntimeException(e);
//                    break;
                }
            }
            System.out.println("t 结束");

        });

        t.start();

        Thread.sleep(3000);

        t.interrupt();
    }
}
